Growth, structure and spectral properties of Dy3+-doped Li3Ba2La3(MoO4)8 crystal for potential use in solid-state yellow lasers

• Dy3+:Li3Ba2La3(MoO4)8 crystal was grown by the top seeded solution growth method.
• The morphology, structure and spectral properties of the crystal were studied.
• The main spectroscopic parameters were calculated by J–O theory and F–L formula.
• The fluorescence dynamics was analyzed based on the Inokuti–Hirayama (I–H) model.
• Comparisons with other reported crystals were made and the prospect was concluded.

Dy3+:Li3Ba2La3(MoO4)8 crystal has been grown by the top seeded solution growth (TSSG) method from a flux of Li2MoO4 and its morphology, structure and spectral properties were investigated. The crystal crystallizes in the monoclinic system with the space group C2/c, and the unit cell parameters are a = 5.3091(5), b = 13.0211(11), c = 19.3301(15), β = 90.891(7)°, V = 1336.1(2) Å3. Based on the Judd–Ofelt (J–O) theory and the Füchtbauer–Ladenburg (F–L) formula, the main spectroscopic parameters of Dy3+:Li3Ba2La3(MoO4)8 crystal, including the intensity parameters Ωt (t = 2, 4, 6), spontaneous emission probabilities, radiative lifetimes and emission cross sections were calculated and analyzed. The room temperature decay curve was analyzed through the frame work of the Inokuti–Hirayama (I–H) model and the results shows that electric dipole–dipole interaction is responsible for the energy transfer processes in Dy3+:Li3Ba2La3(MoO4)8 crystal.